Jointer fence adjustment



JOINTER FENCE ADJUSTMENT Filed Aug. 10, 1948 22 3 if a 2%&/72 Z3 250/4 2'W W Patented Dec. 18, 1951 UNITED STATES PATENT OFFICE William B.Boice, Toledo, Ohio, assignor to Boice- Crane Gompanm -Ioledo, Ohio, acorporation 7 Ap'plication August '10, 1948, Serial No. 43,394

" sci-aims. (01. 144-253) This invention relates to definite positioningas to location and inclination of guide or stop means, more particularlyas to a plane surface. This invention has utility when incorporated witha deck or table top, especially as having a rotary cutting toolprotruding upwardly therefrom. As a jointer fence, a guide face may bepositioned in a desired relation laterally of the tool for an electedspacing, with control for definitely fixing an angularity for the fenceface as to the top. There is accordingly provided hereunder quick rangefor accurate setting of the fence, adapted especially for woodworking,artificial lumber, and compositionsof a general character responsivetospecial edge dressings or configurations.

Referring to the drawings: Fig. 1 is a partly broken away frontelevation, shown in dotted lines, of apower-operated jointer machinetool unit base and deck, having, as shown in full lines, a fencetherefor with adjustment controls;

. Fig. 2 is a view from the left of Fig. 1, of a responsive mounting forthe jointer fence at the end thereof remote from the calibrated ordefinite setting selectable controls;

Fig. 3 is an elevation from the right of Fig. 1, I

showing the table-directed slide plate and largely broken away as to acooperating tilt plate, and at a stop position for the guide at 135 fromthe plane of the tabletop;

. Fig. 4 shows the full tilt plate in front of the slide plate, and heretilted to 90 from the plane of the table top; and

Fig. 5 is on a still larger scale, in section along the axial region ofthe clamp controls, from the left of Fig. 4, with parts broken away andshowing the stop for the tilt plate engaging the underside of the tabletop for the fence face to be set at 45 from the plane of the table topas extending from under the overhanging fence.

A pedestal or base I has thereona mounting 2 for locating a table fiattop or deck 3 having an opening 4 centrally therein. As a power tool, amotor 5 may have a rotary cutting tool; 6 in a desired protrudingrelation at the opening 4 in its effective working range. above-the top3.

A jointer fence body is shown with a plane face 8 downwardly terminatingin an edge portion 9 of slight clearance and parallel to the deck 3. Theedge 9 in its extent toward the opening 4, adjacent the opening 4 has alug ID as a rest to contact the deck 3 with a clearance I across theregion of thetool 6 withan edge. J2 therefrom of somewhat more clearanceas to the deck 3 than the edge 9. The fence body I from adjacent the endof the edge l2 as away from the clearance I has a projection l3 carry:

ing a trunnion M to enter a bearing l5 of-a1 downwardly inclined slottedlink l'B. At anpedge I! of and fixed with the table top 3 is an 6X?ternally threaded pin l8 extending thru slot H) of the link l6. Upon thepin l8 toward the link I6 is a washer 29. A knurled handle or knob nut2| may be set to act as a clamp for the link. I6 for the range ofcontrol positions to be set for the face 8 of the fence member or body1.

The table top 3 opposite to and parallel with the edge IT, has a track22. Thetrack 22.has open ends and is open outward. Insertablein thetrack 22 is a slide plate 23 having on its outer upwardly extending facea pair of lugs or. bosses 24. More centrally fixed with the plate 23 andprotruding between the bosses 24 is :an

interior smooth bore sleeve 25having intermediaate its extent'anexternally threadedportion26u is an axis region 3| as the activelocation for the cutter 6. From this region 3| as a center is an arcslot 32 in the tilt plate 28. I

The are slot 32 at its root or back portion ha a ledge region 33 ofslight clearance as to the external diameter of the hollow stem orsleeve 25 and as a groove extends to open ends beyond.

the slot 32 for the full arc of extent of the tilt plate 28. In thisopen ended way portion 33 at the back of the tilt plate 28, may ridethe. bosses or lugs 26. A bounding ledge or rim 34 surrounds the openface of the slot 32 and provides a seat for the washer 20. of the clamplock. in the coaction of the knurled knob 2| with the; threaded portion26 of the stem 25 in-pulling, the slide plate 23 into holding relationwith the, tilt plate 28 at the elected tilt position for the fence face8.

Positioning the slide plate Spaced upwardly from the bottom of the track22 to align with the bore of the sleeve 25 is a slot 34 having acountersunk entrance portion 35. A rectangular head 36 has aprojecting-rib 31 as a key to ride in the entrance portion 35-. A boltor stem 38 fixed with the head'36 extending thru: the bore of the sleeve25 and, as protruding therefrom in theknob. 2|, hasan externallyof thefence face 8 as to the cutting tool 62 Then, with such setting orlocation. determined, the rise plane for the fence face 8 may beadditionally and separately elected and clampedthru the operation of theknob" 211 During these angularly placings for the face 8 over the rangedesired, the setting as determined-by the. wrench-p handle 42 inclamping the plate 23 may be left undisturbed.

Tilt. plate special stops.

From: the axis? 315a radial line 43" at" approximately 45 from. the.direction. of the edge 29 hasa bolt 44 protruding. from outeriarc face45 of the'ztiltplate 28'. The bolt 441s aipivot' parallel to and spacedfrom the. line. 435' toward the edge .29.. The bolt 44 fixedlyclampsianarm or offset- 46 against a fixed pin. 4.? on the side of the arm'- Miaway from the. line 43. Thru the free endiof: thearm 46 and in-adirection perpendicularr-to the line43 is an: externally threaded stem48 which-maybelocked at adjusted position by a. nut: 49% Atxthisadjusted projection for the stem 48,end'fa'ce 50 of the stem 48 isbrought just to; th'e directionof the line 43; This means thatasithei-face' 5'0 isswung'down to strike thetop of the tab1'e 3,the-face 29'extends away from the axis3li to have the fence face 8 makean angle off 135ope'nin'gfrom the top of the table 3. This islafixedstop determining the maximum back or openingswing or tilt for'thejoint'er fenceface 8.

The tilt plate 2 8, at 941 from theface or edge 29; ata radialline 5ihas'a second-bolt 44 parallel' thereto and mounting aswing arm 4'6friction-- ally. held by a spring washer 52 when the free-endo'f'thisarm 46" is" not overhanging but along the facev 45. At'this position,thestop at the radial line 43' maybe effective. Howevenwith the arm 4fiswung outward; that is, to overhang laterally from the face 45,in-proximity to the radial line 51 the endif'ace 5ft of its'stem 48 asadjustably setTbyFth'e locknut" 49atherefor, in striking the" top of thetable 3, is with suchtop coinoidentwith th'eiline 5|; This positions thefence face 8 to rise vertically from the table 3.

A'thi'rdradi'a'l'line 53 at 135fro'm the-edge-29; in its extent outwardfrom thetilt plate'outer'arc facef45 has clearway toward the lin'e 5iand at the other side of'su'ch line-53 there is a third bolt 44frictionally; by a spring washer 52,- mounting a swi'ngarm 46 so thatitmay be moved-intoout of use position along the face 45, or swung tohave its free end outward and ride against-the pin 41 for 'its st'op'face 50 of its stem 48 to be against under side 54 of the table 3- (Fig5X to bring the face or edge 29 to 45 up angle from the table top 32Tilt plate selective stops 7 Fixed, withthe slide plate- 23" is a.pointer 54' preferably-set toindicate whenithe-swingable stop face?50'is. at the line to coincide with: thfltOD of the table3; That is,,atsuch location" theifencev face 8 and the'edge 2 9 extendvertf- ,or' are:at 90 or perpendicular asto-the plane of the table top 3. 0 location ison a scale 55 of the tilt plate 28 outside of and adjacent to the arcslot 32. As shown, the scale 55 is of 90 overall extent, being 45 eachway from the 0 marking or notation. The graduations along the scale 55may be with such refinement as desired, even down to degrees, minutesand seconds. However; ontl'iesho.wing the markingsfane In thepract-icehereunder involving the special stops for 45, 90 and 135, it isdesirable that the operator, as the fence body 1 comes to rest, then setthe knobs--21 at'the link l6 and the slot 32 into clampelfectingposition, for in the locating of the fence these knobs had each-beenreleased. As heretofore bro'ughtout; only the clamping from the knobs 2|shouldbereleased for the angle setting, and. the fixing; of the slideplate 23 thru the wrench handle 42 clamp is holding.

Upon'oc'casion arising for jointer fence setting at a special angle asselective beyond or differing. from'. the: special stops asidentifieclg. it? is:- in order'for:the op'eraton' to. use the scale 55.Forinstance, .it be? desired: to have the angle. between the tablettop3"and theifen'cefaoei 8:: to-be the stopiin the regionzof the linei5'lis swungiaway' from'pfiset position to rest along" th'ezarci face 45'andi'thus: be clear ofithe: table" 3*. The tilt plate? 28* is rockediclockwise (Fig. 4) to the first 15"" graduation above; thej 0" notationas deter:- mined bythepointer 54-"; Then the' knobs=2 Iiare turnedtoclamping position; thuslocking the plat'e 2'8Zagainst any shifting'asto. the slide plate 23or theitab'le 3'; .Thislocking isrindependentfotthe speciallstops; andiisadirect clamping fixing: the" fence body 1 at'ithe readily rocked position in shifting effected thru a hand holdi5ii;The cap nut 4l against the sleeve -end 43 has fixed the plate-2 3 withtheit'abletiack 221 The knobs 2| thru the-washerszfl grip the linki E'and the plate What is claimed and it is desired to secure-by LettersPatent is:

1'. In a'zjointerhaving' a'tabl'e, an adjiis'table fence movable: andtiltable over said table; a; track at one endof saidtable; a tilt-plateat tached to one endof 'said-fe'nce; apslide plate cooperatingWithisai'd track and attached to' said tilt; plate; the: improvement.comprising: sepa rate co' axial' simultan'eously operable clamping meansf'o'rlsai'd slide-:plat'e and said tilt plate,- respectively, swingablestoplmean's for limitingthe tiltof said" tilt plate; a pivot' bearing"for mounting said stop=means on the peripheryof'said'tiltplate, saidbearing having an axis-substantially radial to the'saxisiof tilt of saidtilt plate, and a radially extending stop pin on theperiphery of: saidtilt'plate'. co-acti'n'g to" limit the swing of said stop: means to aposition substantially par-- allel to theaxis' of'tilt', whereby saidstop means when limited in swing by said stop pin may abut against saidtablei-to' limitthetilt of said fence relative tosa'id table.

2.111 ajointer having a table-an adjustablefence movabl'e and tiltableove'r said table; a---til t" plate attached to 'one end of said feh'ce,the'im' pro ement comprising: swingable str'no' means for limiting? thetilt o'f sa'id tilt; plate, a pivot bearingformountingrsaidistoprmeanstonithe petipherynf said. tilt. plate,saidtbearing; having. an. axis sub stantially. radial to: the. axis oftilt of said tilt plate, a radially'extending.stop pirr onthe peripheryof said tiltplatelco actingtoiliinit the swing of: said stop means to aposition normal to the tilt plate. whereby said stop. means may abut.against said: table. and saidstop pin. to limit the 5 6 tilt of saidfence, and means to clamp said tilt UNITEDVSTATES PATENTS plate andfence in position. Number Name Date 3. A stop means according to claim 2including 623 156 Humphrey 18, 3 a set screw at its abutting end.1,967:791 Tautz July 24 1934 WILLIAM BOICE- 5 2,049,044 Boice July 2a,1936 2,049,045 Boice July 28, 1936 REFERENCES CITED 2,085,131 Tautz June29, 1937 The following references are of record in the file of thispatent:

